Ground Fixed Bell Lyre
Installation Instructions:

1. Attach Ground Fixing posts to legs(1.2) (See Ground Fix Post Installation Sheet)
2. Excavate1 hole for the Steel leg 250mm diameter by 600mm deep, in desired location upon decision from customer.
3. Locate (lower) legs into hole making sure they are vertical and level prior to concreting in place.
4. Once happy with location of the Instrument, fill hole using rapid hardening concrete. Be sure to compact concrete around legs and leave to dry according to manufactures guidelines.

Instrument Components:
M6x20 Security Screw x4
M6 Saddle Strap x2
Pair Small Red Beaters x1
Ground Fix Components:
M10x200 Bolt x2
M10 Nut x2
M10x70 Security Screw x1
M10 Barrel Nut x1

Ground Fix Post Installation

1. Insert M10x200 Threaded bar into pre drilled holes in Ground Fixing Post
2. Fix M10x200 Threaded bar in place using M10 Nuts
3. Locate the Ground fix Post into the leg of the instrument.
4. Fix instrument to Ground fix post using M10 bolt and Barrel Nut and use thread locking solution to prevent fixings working loose.
5. Excavate 1 hole with a 250mm diameter tapering down to 350mm diameter and 650mm depth
6. Compact base of hole with 50mm of aggregate. Lower ground Fix post attached to instrument into hole (check instrument straight and level before filling with concrete).
7. Fix hole with fast drying concrete to manufacturers specifications.

600mm min depth. Can be buried deeper if required.
Foundations should not present a hazard. These foundations are recommended as a guide, for more information on foundation details for various surface see Part 1 of BS EN 1176.